Calculating-machine.



W. W, HOPKINS.

CALGULATING MACHINE. y APPLICATION FILED MAB. 7, 1907.

1,032,678. Patented July 16, 1912.'

2 SHEETS-'SHEET 1 z SHEBTVSHBBT 2.

@www/sa? MEMS.

W. W. HGPKINS.

GALGULATING MACHINE. .1 11.1o.1 n1o11 FILED MAR. 7, 1907.

Patented July 16 UNITED STATES igrENT onirica.A

WILLIAM W. HOPKINS, OF ST. LOUIS, MISSOURI, ASSIGNOR T MOON-HOPKINS BILLING MACHINE COMPANY, 0F ST. LOUIS, MISSOURI, A CORPORATION OE4 MICHIGAN.

CALCULATING-MACHINE.

1 7032,678. Specification of Letters Patent. Patented July 16, 1912.

Application filed March 7, 1907. Serial No. 361,075.

To all whom it may concern: and 208 another setl of register wheels. Be itknown that I, 7WILLiAu W. Hor- These register' wheels separately cooperate mNs, a citizen of the United States, residwith appropriate.carryingmechanism. ing at St. 'Lo-uis, Missouri, have invented-a 100 are the actuating racks for the regiscertain new and useful Improvement in Caltering wheels, which racks have slot and 60 culating-Machines, of which the following pin connection with levers 102. is a full, clear, and exact description, such 93 are stoppins for arresting the racks as will enable others skilled in the art t0 by cooperating with shoulders 101 thereof which it appertains to make and use the in predetermined positions. These stop pins 10 same, reference being had tothe accompanyare positioned by setting pins 03 arranged`65 ing' drawings, forming part of this speciiin a traveling `:arriage 57, which setting cation, in whichpins and traveling carriage are under the Figure 1 is a vertical longitudinal sec control of digit keys. l tional view through a calculating machine When an example has been set up in the;

YyItf'illust-rating my improvement; Fig. 2 is af setting pins of the traveling carriage the?` 70 "--f view illustratlng my improvement in an operation ot the power shaft, not shown,I adjusted position; Fig. 3 is a' similar View will cause the carriage and the setting pins illustrating my improvement in a different to be bodily lifted so as to position t-he adjusted position; and Fig. 4 is a top plan stop pins 93, after which the restoring bar view of the printing type and associate 104 moves 'forward and permits springs 103 75 parts. V to impel levers 102 and their `connected This invention relates to a new and useful racks 100 forwardly until the shoulders 101 improvement in calculating machlnes and vare engaged by the raised stop pins 93. particularly to the means for operating the The register wheels 110 or 208 are then printingtype from the actuating devices ot engaged with the racks, so that when the 80 the registering mechanism. The registering bar 104 restores t-he racks the item intromeehanism of the calculating machine duced into the machine by the keys will be shown in the accompanying drawings is registered in said wheels. In taking a total similar to that illustrated and described in the wheels 119 or 208 are first engaged with an application tiled by Hubert Hopkins the racks 100 before the racks are moved 85 April i), 1900, Serial No. 310,730. forwardly. The register wheels 208 are The object of my present invention is to principally identified with the multiplying combine a suitable and appropriate registerdevices located at the rear ot the machine, ing mechanism :with printing devices 'which .but with regard to these multiplying devices are positioned by ythe 'register-actuators, no detailed description is here given because 90 said printing devices being in the form ot' such is deemed unnecessary. segments or bars having solid type on their The forward ends of the racks 100 are peripheries.- These printing segments are each provided with a downward extension independently' adjustable and coperate 101a which cooperates with the printing seg- 40 wiith mechanism whereby they are initially ment to posit-ion the same.

aylid independently released when positioned, 2 is a comb plate secured to one ot' the a d collectively released after being posicross.V trame bars of the calculating machine, tioned so that the positioned bars will bodily and whose teeth project forwardly and are make a printing impression. slotted so as to provide guide ways tor latlVith these objects in View, they invention eral projeet-ionson the rear ends of links 3., 100

consists in the construction, arrangement The extensions 101-a of the rack bars projectandcombination of the several parts, all down between the teethof the comb and in as will be hereinafter describedfand aftcrfrontA of the lateral projections on. the links r wardpointed out in the claims. Ei .3. The end of each of these linksjl is con- "0 In the drawings, 1 indicates the Aside nected to a printing segment' 4, which print- 105 frames'ot the registering section o'fa ealcuing segment is mounted in a lever@ arlating machine, in which side trames are ranged on a stationary tulcrum 0. A spring mounted appropriate devices for coper- ,7 cooperates withthe .lower end ot the print ating with the registers. 4ing segment 4, and tends to more the upper 119 indicates one set of register Wheels, end of said printing segment torwardl y.

vWhenever the rack bar 100 and its eXtensiop P move forwardly, the printing segment controlled by said extension w1ll be permitted -to move forwardly and be positioned so as to have the printing type corresponding to the position'ofthe rack bar in printing line. Thus the rack bar 100 may move forwardly and be arrested in one'of ten different positions, the first position representing 0, the second 1, the third 2, and so on up to 9;

l/V'hen the rack bar moves forward a pawl 8 whose upper end cooperates with the eX- `tension 101a is permitted 'to-rock so as to move its lower hooked end from under the rearward extension of lever 5. This pawl 8- being directly controlled by the rack bar extension, thus initially releases the .lever 5 so that the operation of pawl 8 isa condition precedent to making a printing impression from the type segment associated therewith.

if the rack bar 100 is not moved to zero po-v sition or toa position indicatinga digit,- the pawl S is not operated, and consequently the lever 5 controlled by said pawl cannot be operated. There is a pawl 8 for each lever 5, and each pawl has a spring 9 connected thereto which tends to movethepawl against a'stop 10 when in its released position. The extension 1013, by engaging the upper end of pawl 8, moves its hooked lower end under the lower end of lever 5.

11 indicates a rock shaft having a rock arm 12 connected by a link 13 to 'a `rock arm 14 mounted on a shaft 15. Whenever' the power shaft of the calculating machine is operated, except in the operations of multiplication, the shafts 15 and 11 are rocked.

16 indicates rock arms on the shaft 11, said'rock arms carrying a -bar 17 which operates under the rear ends of lever .5,saidy bar tending to restore the levers 5 to normal position after operation.

19 is a shaft on which are mounted pawls 20, the rear ends of said pawls being located under the bar 17. The forward ends of pawls 2O are in the form of hooks which coperate with lateral extensions 5fL on the levers Springs 21 tend to hold the pawls in such position that they will engage the lateral extensions 5 and hold the levers 5 against movement.

Means must be provided to drive the type segments against the paper on the platen,

and this means is shown in the accompanying drawings as consisting of arms 22 loosely mounted on the shaft 11, each of said arms hein provided with a roller `or lateral projection 23 engaging the rearward extension of lever Springs 24 are connected to the arms 22 and tend to pull them downwardly. It is obvious that these springs 24 could be directly connected to the rear ends of levers but l prefer to employ they arms 22 with the rollers QB-because by so doing the contractive movement of the springs 24 is con: siderably lessened.

25 is a bar secured in some suitable manner to the framing of the machine, whose under side is preferably faced with leather 26 or other suitable bu'er material.- In operation the forward ends of levers 5 strike against this bar and are arrested. The type segments are appropriately mounted in the forward ends of levers 5 by slotand pin connection, so that when the levers 5 strike the buffer 26 the type segments may move upwardly by momentum and deliver an impacting blow against the paper on the platen. The spring 7 tends to draw the type segments down to normal position after the printing impression has been made.`

27 is a platen which is preferably mounted in a laterally movable carriage, not shown,- whichis operated by appropriate paperfeeding devices, not'shown.

28 indicates a sheet of papersupported by the platen.

There are as many type segments as there are normally active racks in the calculating machine and each type segment is initially positioned by its spring 7 whenever a racli 100 moves forward. As before stated, the forward movement of the rack'releases its related pawl 8 sothat the lever 5 carrying the type segmentidentitied with the particular rack operated is initially' released. Vhen: the power shaft of the machine is operated the rod 17 is depressed and will operate all the pawls 20, releasing all of the levers 5 fromrestraint of these pawls. Such of the levers 5 as have been initially released by the pawl 8 are thus free to move, and the springs 2st now come into action and collectively raise all of the positioned printing segments until said segmentsare arrested lby the stop bar 25 and its cushioning device. Momentum imparted to the printing segments, however, causes them to continue their upward movement and deliver' an impacting, type-impressing blow on the paper carried by the platen. After making the printing impression Athe bar 17 is restored to normal position and coincidently therewith the racks 100 are likewise restored. The restoration of bar17 raises the rear end of all of the .operated levers 5 and again places the springs 24 under tension, and by releasing the pawls 20 all of said pawls again become engaged with the projections 5CL of their respective levers 5. The restoration of the racks 10() causes the pawls 8 to become engaged with the rear ends of levers 5, and when the parts are in such position, as shown in Fig. 1, the machine is in readiness for operation. ln Fig. 2 the parts are shown in printing position, wherein Zero is Abeing printed, while in Fig. 3 the parts are shown as being in a position they assume in printing 9.

It will be noted from the above that the racks 100 are not connected with thetype segments so as to positively move the type segments forwardly. In the calculating machine illustrated, 'in the lapplication of Hubert Hopkins before referred to, in operations of multiplication, the racks 100 are operated, but means are provided for preventing the vibration of the bar 17. Thus during certain portions of multiplying operations the racks are operated, but the print-ing mechanism is not operated, andconsequently no printed .record is made of these operations. In the construction illustrated in the accompanying drawings it will be observed that if the bar 17 is not operated the rackslOO are free to vmove forwardly without operating the printing segments, and thus no printed record will result from such movement of the racks.

vWhile -I have illustrated type segments and referred to type segments throughout this description, it is obvious that the printing type could be arranged on wheels in a manner well understood in this art, in which event, in order toimpart proper movement to such type wheels, each wheel would have a pinion conjoined lthereto, which pinion would mesh with a rack: connected to or forming part of the rack 100. It is also obvious that instead of havingtype in the form of a segment said type could be mountedona bar directly connected tothe racks I am aware that heretofore it has been the common practice to connect directly with or 'operate from the actuating devices of the register, type-carrying members in which are mounted loose type, these loose type in printing line being struck by type hammers so as to make a printing impression. These loose type, of necessity, require individualsprings and special mountings, and these multiplythenumber of parts entering into the construct-ion of such a printing mechanism. In 4my construction the type arranged on the periphery of a wheel, on a segment or ona bar, are allsolid and connected together, and one type of a series is not movable independently of another type in the'same serles. This materially reduces f the costofmanufacture and renders the' construction less liable to get out of order.

Therefore, in the following claims, in order to distinguish from-'the type carriers with their loosely mountedityp'e, I shall refer to mountedtype. c i l l .Having thus described the 1nvention,'what is claimedfasnew and desiredl to be secured of the said type.

its associated actuating device, said type being positively moved in the opposite direction by the said actuating devices.

2. In a calculating machine, 4registering' wheels, actuating devices therefor, print-ing type, and a connection between said-type and said actuating devices whereby the actuating devices may operate independently 3.' In a calculating machine, registering wheels, actuating devices therefor,printingtype,`means for moving said type and means for restraining the movement of said type when said actuating devices are moved.

4. In a calculating machine, the combination with-registering wheels, actuating devices'. therefor, rigidly m'ounted printing type, a connection between said actuating devices and said typewhereby .the actuating devices may move4 independently of said type, yielding means for holding said type in connection with said actuating devices to partake of the movements-thereof, means for restraining the movements ofsaid typey during the movement of said'actuat-ing devices,pawlscontrolled by said actuating de vices for initially releasing saidy type, and

pawls also-cooperating with said type, said v straining pawls cooperating with said lever, one of said restraining pawlsfbeing. controlled by said actuating devices, and' means for operating the other of said re-- straining pawls; substantially as described;

-l'ast mentioned pawls being controlled by les 6. In a calculating machine, a reg1steran actuating rack therefor, printing type, a f

link connection between `said rack and said printing'type, a lever in Whichsaid type are pivotally mounted,y two restraining paw-lsl for said`lever, one of said restraining pawls being. operated by said racks,-` restoring means for said printing type, said restoring y means operatingthe' other of said restraining pawls, sprlngs for-l1 lmovingl said 'lever when said last mentioned pawl, is operated, and asto *bar with which said leyercoperates g su stantially as described. l 1` 7. In a calculating machine, afv register,

actuating -devices therefor, l said actuating deviceshaving extensions, af comb plate between the teeth of which said extensions project, pivotally'mounted type,- and. links connected to said 'type and movable in 4one direction l only by said actuatlng devices: substantially as described.

S. In a calculating machine, the combination' with register-actuatingdevices, of pivotally mounted ty e whose position isy inglycontrolled y said register-actu'cmg.

lise.'

devices when moving in onevdircction, a lever having slot and pin connection with said pi'votally mounted type, means for controlling said lever, a stop bar against which said lever strikes, and a platen carrying` a sheet of paper' for receiving an impacting bloW from said type; substantially as de-4 .A scribed.

9. A calculating nia'chine, printing` type,.

actl'lating device, type which are positioned by said register-actirating device, a lever 'with which said type have a slot and pin connection, a stop bar for arresting` the .inoven'ient of said lever, and for causln said type to deliver an impacting blow, a platen lor support-ing` a sheet of paper, and restraining' pawls cooperating with said lever; substantially as described.

In Vtestimony whereof I hereunto allix my signatur-e in the presence of tWo witnesses, this titth day of March 1907.

WILLIAM WV. HOPKINS.

lVitnesses Lnnonn lVILsoN, GEORGE BAKEWELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

i Washington, D. C.

of the case in the Patent Office.

[SEAL] It is hereby certified that the name of the State of incorporation of the assignee in Letters Patent No. 1,032,678` granted July 16,1912, upon the application ot William W. Hopkins, of St. Louis, Missouri, for an improvement in Calculating- Machines, was erroneously Written and printed Miehigam whereas said State should have been Written and printed jlfssom'; and that the said Letters Patent should be read With this correction therein that the same may conform to the record Signed and sealed this 13th day of August, A. D., 191.2.

,15mm/Seaview of Pawn/s. 

